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Metering and telemetry ensure accurate revenue accounting

Metering and telemetry are mandatory tools for ensuring accurate revenue accounting and ISO operational visibility.

Metering process and requirements

Metering processes and procedures are used by the ISO, metered entities and scheduling coordinators to obtain settlement quality meter data used for the settlement of the market.

Metering Guidelines

Guidelines for metering certification of prospective ISO metered entities that wish to participate in the ISO market.  These guidelines complement, but do not replace, section 10 of the ISO Tariff and Business Practice Manual for Metering.

Meter installation, inspection and certification

Technical information and requirements for ISO metered entities.

Agreements and information requests sheets

Agreements to adhere to the SC requirements and standards.  Please provide required information to initiate certification, meter service and network connectivity agreements early in the process.

Application access

There are many different applications used by SCs to participate in the market. The ISO and its market participants must adhere to rigorous requirements to help ensure the integrity and confidentiality of commercially sensitive or proprietary information and data, as well as to protect the ISO grid and its assets.

Options for meter data submission

Telemetry process and requirements


Generating units and load participants must establish and maintain a data processing gateway between plant facilities and the ISO energy management system for the purpose of generation control and monitoring.

Direct telemetry standards

The ISO requires direct telemetry of participating generators and load by installing a remote intelligent gateway (RIG) for generating units providing regulation energy or a data processing gateway (DPG) or other ISO-approved technology for resources providing non-regulation ancillary services or supplemental energy.

Agreements and information request sheets

Please provide required information to initiate telemetry agreements early in the process.

Application access

There are many different applications used by SCs to participate in the market. The ISO and its market participants must adhere to rigorous requirements to help ensure the integrity and confidentiality of commercially sensitive or proprietary information and data, as well as to protect the ISO grid and its assets.